diff --git a/dom/plugins/test/mochitest/test_clear_site_data.html b/dom/plugins/test/mochitest/test_clear_site_data.html
index 564a1db668e1..dce7c5cb3f92 100644
--- a/dom/plugins/test/mochitest/test_clear_site_data.html
+++ b/dom/plugins/test/mochitest/test_clear_site_data.html
@@ -21,6 +21,7 @@
     p.setSitesWithDataCapabilities(true);
 
     ok(PluginUtils.withTestPlugin(runTest), "Test plugin found");
+    SimpleTest.finish();
 
     function stored(needles) {
       var something = pluginHost.siteHasData(this.pluginTag, null);
@@ -191,8 +192,6 @@
       ok(!stored(["b\u00FCcher.nz"]), "Data cleared for UTF-8 representation");
       ok(!stored(["xn--bcher-kva.nz"]), "Data cleared for ACE representation");
       ok(!stored(null), "All data cleared");
-
-      SimpleTest.finish();
     }
   </script>
 </body>